Construction of ships



.I. F. KING. CONSTRUCTION OF SHIPS. APPLICATION FILED OCT. 6, 1920.

1,391,389. 7 PatentedSept. 20, 1921.

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i i I I II .B Y I A G B r i A I 1 J A \JA GA A B G a} E \BLE-QEM L"-//VVEN7'0/\ Jam 155' kV/NG Patented Sept. 20, 1921.

1. F. KING. CONSTRUCTION OF SHIPS. APPLICATION FILED OCT. 5, 1920.

INYENTOR Tamas F K/Ne 3O "0 {a Q ".0 0

l i I l 1 l I I 1 l I l i I UNITED STATES PATENT OFFICE.

JAMES. FOSTER KING, OF GLASGOW, SCOTLAND.

CONSTRUCTION OF SHIPS.

Specification of Letters Patent.

Patented Sept. 20, 1921.

Application filed October 6, 1920. Serial No. 415,154.

heads give all the transverse strength required, and by so doing toreduce considerably the scantlings of the ordinary transverse frames andfloorsthe latter being preferably entirely dispensed withso that theyare practically negligible for transverse strength, the stress on thebottom and sides of the vessel being taken up entirely by longitudinalgirders of exceptional depth fitted from bulkhead to bulkhead.

The longitudinal web frames or girders may be slotted over thetransverse frames, or they may be fitted with a continuous shellconnection and the transverse frames connected to the girders byordinary methods, or to each other by means of joint pieces which passthrough the girders.

Two accompanying sheets of explanatory drawings are hereunto appended inwhich Figures 1 and 2 are half transverse sections and Fig. 3 alongitudinal section of parts of a ship suflicient to show an example ofthe improved construction.

As shown in the drawings a number of I longitudinal web frames orgirders A are fitted over the whole girth of the hullbelow the lowestdeck or tier ofbeams. These longitudinal frames are restrained fromtripping under stress by angle stays C, and they are held in place byangle bars E and bracket connections G. They are also secured at theends to closely spaced transverse bulkheads D by means of bulkhead'stifi'eners J, the angle connections E and brackets H. Between thesebulkheads D there are fitted a number of relatively small transverseframes B secured to the longitudinal frames A by the bracket connectionsG and at the ends by brackets F. The longitudinal web frames A are inthis example slotted over the transverse frames B.

The scantlings of the structural members described above will vary withthe dimensions of vessels and sizes of tanks or holds therein, and alsowith heights to which oil or other cargoes rise, and with test head re-'quired.

The following scantlings for instance would apply in the foregoingspecification to a vessel whose dimensions are 430' x 57 x 34 6". withan oil cargo Girders A, bot-tom 60" x .46" spaced 7 feet; sides 48" x.42 spaced 8 feet.

Transverse frames B, 8%" X 311; X .46" bulb angle spaced 28%".

Angle stays C, 6 X 34 x .38 every 4th frame.

- Transverse, bulkhead D, .48 bottom to .8" to Longitudinal bulkhead,.52" bottom to .28" top.

Angle bars E, 6 X 6" X .54".

Small brackets F, .38 thick.

Bracket connections G, 8" X 3%" X .38".

Brackets H, 54' sided.

Center line bulkhead stifi'eners J, 7 X 3 x .36 bulb angle spaced 28%.

Transverse bulkhead stiifeners 9" x 3 x .44 bulb angle spaced 28%.

What I claim is 1. An oil-tank ship comprising in combination, a hull, aplurality of exceptionally large widely spaced longitudinal web framesarranged over the girth of the hull below the lowest deck or tier ofbeams, and a plurality of relatively small longitudinally-spacedtransverse frames shaped to conform to the contour, of the ship andconnected to said longitudinalweb frames, whereby floors or theirequivalent wide spaced bottom transverses maybe dispensed with.

2. An oil-tank ship comprising in combination, a hull, a plurality oftransverse bulkheads, a plurality ofexceptionally deep widely spacedlongitudinal girders arranged over the girth of the hull and connectedto said bulkheads, and a plurality of relatively small transverse framesshaped to conform to the contour of the 'ship, arranged intermediatebetween said bulkheads and connected to said longitudinalgirders,whereby floors or their equivalent wide spaced bottom transverses may bedispensed with.

In testimony whereof I have signed my name to this specification.

JAMES FOSTER KING.

